Speaking of microbes... No controls so this ain't an experiment. Just trying something new.
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The theory is that instead of starting my beans in water with h2o2 which is gonna kill anything, then into fairly pasteurized starter soil that may or may not have some active microbes like the sack says, I am starting from the actual beginning.
In the RO water I have a pinch of fresh compost, and a micro-dose of the Recharge microbe inocculant. Letting it bubble for just a bit to aerate, then straining it into the cups for the beans to soak in.
I'm also going to sift my worm castings this evening and get super-fresh for the bottoms of the beer-cups. I think about an inch or two at the bottom then the sed starter soil above that should let the beans get started like normal (but with bacterial colonies already multiplying on every new root because of the water) then reach the compost in about a week.